Nona- K

D./Weight (tons):

?

Dimensions (m):

?

M./Engine:

-

Range (m):

8,700

other :

V= 560 m/sec

Armament:

120 mm gun R: 10 rds/m/m

THE FOUR FACES OF NONA: MORTARS
WITHOUT EQUAL

Specialists throughout the world appreciate the need to equip high mobility combat units
(paratroops, airmobile and naval infantry) with a powerful artillery system that can
correspond to ways of their shipment and mobility in terms of their marching and
maneuvering characteristics. Such systems had been developed in some

Nona-SVK

countries,
however, a dramatic breakthrough was achieved by Russian designers of the Precision
Mechanical Engineering Central Research Institute (TsNIITochMash). Jointly with a number
of design bureaus, institutes and plants TsNIITochMash created the Nona-S (2S9) unique,
completely armored, breech-loaded artillery system with a filter-ventilated unit.

This artillery
system was mounted on the chassis of the BTRD updated airdropped tracked armored personnel
carrier. This engineering solution was prompted by the need to drop the artillery
system together with the BMD airborne combat vehicles. Primarily, it allowed these
artillery systems to be dropped together with BMDs via jet parachute systems, with the
crews inside the vehicles. Also, this solution facilitated their joint combat use, owing
to the availability of the tracked chassis and armor plating.

TsNII TochMash's
designers developed a new design-ballistic concept "cannon - round" which stood
out owing to the use of ammunition with ready-made grooves on the driving band of the
projectile.Constructionally, the round intended for breech-loaded cannons and mortars
consists of an explosive charge in the form of a cartridge arranged on the cannon primer,
with the diaphragm in its rear part resting on the tapered part of the barrel before
firing. On the front part of the cartridge, the primer has elements of the locking device
and the projectile with a fuze. Before firing, an explosive charge and projectile are
coupled via the locking device to form a fixed round convenient for loading.

Nona-S

The artillery part of the system incorporates the following new elements required for
firing separate loading ammunitions:

- a breechblock
with plastic obturator that rams the round into the cannon barrel, which is locked by the
wedge at the firing moment;

- a special
configuration of the breech piece that provides for loading both modern ammunitions and
finned shells;

- the use of
compressed air fed from the chassis compressor to ram the round during the loading and
scavenging the barrel after each shot.

The engineering
improvements of the artillery part and ammunitions incorporated in the Nona-S
self-propelled cannon were so successful that it was decided to continue projects to
create other derivative artillery systems.

Apart from the aforementioned cannons the Nona-M semi-automatic breech-loaded mortar was
developed (experimental pilot).

All these
systems are unified:
- use similar ammunitions;
- have rifled barrels with a similar rifling configuration;
- are breech-loaded;
- fire both specially developed ammunitions with high-explosive fragmentation (HEF)
projectile and HEF active-reactive projectile that features ready-made grooves on the
driving bands and all ammunitions intended for 120mm mortars. Ammunitions made in Russia,
Germany, France, Israel, Spain and China were also tested.

The Nona cannon
is unrivaled in the world in terms of all factors determining the combat efficiency of an
artillery system, including minimum and maximum firing range, stable and high consistency
of fire to engage ground and air targets, sighting rate and mode of fire, powerful
lethality of fragmentation and high explosive ammunitions and high maneuverability in
terms of trajectories.

The Kitolov-2
guided projectile with HEF warhead and 9-km firing range is being developed for Nona
cannons.

The artillery
systems are identical in terms of the breech loading and ammunition ramming into the
barrel. Self-propelled guns use a pneumatic drive for these purposes.

Nona-M

The round with highly lethal HEF projectile and propellant charge arranged on the
loading device is the main ammunition intended for Nona cannons. Prior to firing a shot,
the HEF projectile and propellant charge are coupled to form a fixed round convenient for
loading at one cycle.
The cannon's rate of fire is 10 rounds per minute and that of the mortar is 8 to 9 rounds
per minute.

The main round,
designated 30F49, features a powerful fragmentation and high explosive effect. During its
explosion the round produces over 3,500 fragments weighing from 0.5 to 15 grams that
scatter at an average speed of 1,800 m/s.

The round
fragments can penetrate an 8 mm thick armor plate at 15-20 meters from the explosion point
and 12-14 mm thick armor plate at 7-10 meters. For armor plates made from light alloys the
thickness penetrated is 2.5-3 times greater.

When the round
is fitted with an impact fuze, it produces during the explosion a crater 2 meters
deep and 5 meters in diameter in soil of average density.

The Nona-M
mortar is the lightest artillery system from developed cannons that features one more
advantage: in 2-3 minutes three skilled crew members can disassemble the mortar into four
parts, each weighing no more than 100 kg, making it suitable to be carried by the crew.
Reassembly takes the same amount of time.

This advantage
allows the crew to carry the mortar to places inaccessible to self-propelled wheeled
cannons, thereby enhancing its surprise combat use. The Nona-M mortar's improved
maneuverability provides for its deployment on firing positions inaccessible to other
types of artillery systems.